Loans and Leases - Schedule of Past Due Loans and Leases (Details) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Financing Receivable, Past Due [Line Items]
Total loans and leases	$ 5,106,484	$ 5,267,910
Less: unearned income and deferred costs and fees	(9,706)	(7,583)
Total loans and leases, net of unearned income and deferred costs and fees	5,096,778	5,260,327
30-59 Days
Financing Receivable, Past Due [Line Items]
Total loans and leases	971	1,831
60-89 Days
Financing Receivable, Past Due [Line Items]
Total loans and leases	465	1,181
90 Days or More
Financing Receivable, Past Due [Line Items]
Total loans and leases	28,704	14,300
Total Past Due
Financing Receivable, Past Due [Line Items]
Total loans and leases	30,140	17,312
Current Loans
Financing Receivable, Past Due [Line Items]
Total loans and leases	5,076,344	5,250,598
Less: unearned income and deferred costs and fees	(9,706)	(7,583)
Total loans and leases, net of unearned income and deferred costs and fees	5,066,638	5,243,015
Commercial and industrial
Financing Receivable, Past Due [Line Items]
Total loans and leases	948,209	1,178,728
Commercial and industrial | 30-59 Days
Financing Receivable, Past Due [Line Items]
Total loans and leases	488	44
Commercial and industrial | 60-89 Days
Financing Receivable, Past Due [Line Items]
Total loans and leases	4	25
Commercial and industrial | 90 Days or More
Financing Receivable, Past Due [Line Items]
Total loans and leases	424	1,516
Commercial and industrial | Total Past Due
Financing Receivable, Past Due [Line Items]
Total loans and leases	916	1,585
Commercial and industrial | Current Loans
Financing Receivable, Past Due [Line Items]
Total loans and leases	947,293	1,177,143
Commercial and industrial | Agriculture
Financing Receivable, Past Due [Line Items]
Total loans and leases	78,335	94,489
Total loans and leases, net of unearned income and deferred costs and fees	78,335	94,489
Commercial and industrial | Agriculture | 30-59 Days
Financing Receivable, Past Due [Line Items]
Total loans and leases	29	0
Commercial and industrial | Agriculture | 60-89 Days
Financing Receivable, Past Due [Line Items]
Total loans and leases	0	18
Commercial and industrial | Agriculture | 90 Days or More
Financing Receivable, Past Due [Line Items]
Total loans and leases	0	0
Commercial and industrial | Agriculture | Total Past Due
Financing Receivable, Past Due [Line Items]
Total loans and leases	29	18
Commercial and industrial | Agriculture | Current Loans
Financing Receivable, Past Due [Line Items]
Total loans and leases	78,306	94,471
Commercial and industrial | Commercial real estate other
Financing Receivable, Past Due [Line Items]
Total loans and leases	727,944	792,987
Total loans and leases, net of unearned income and deferred costs and fees	727,944	792,987
Commercial and industrial | Commercial real estate other | 30-59 Days
Financing Receivable, Past Due [Line Items]
Total loans and leases	459	44
Commercial and industrial | Commercial real estate other | 60-89 Days
Financing Receivable, Past Due [Line Items]
Total loans and leases	4	7
Commercial and industrial | Commercial real estate other | 90 Days or More
Financing Receivable, Past Due [Line Items]
Total loans and leases	424	1,516
Commercial and industrial | Commercial real estate other | Total Past Due
Financing Receivable, Past Due [Line Items]
Total loans and leases	887	1,567
Commercial and industrial | Commercial real estate other | Current Loans
Financing Receivable, Past Due [Line Items]
Total loans and leases	727,057	791,420
Commercial and industrial | PPP loans
Financing Receivable, Past Due [Line Items]
Total loans and leases	141,930	291,252
Total loans and leases, net of unearned income and deferred costs and fees	141,930	291,252
Commercial and industrial | PPP loans | 30-59 Days
Financing Receivable, Past Due [Line Items]
Total loans and leases	0	0
Commercial and industrial | PPP loans | 60-89 Days
Financing Receivable, Past Due [Line Items]
Total loans and leases	0	0
Commercial and industrial | PPP loans | 90 Days or More
Financing Receivable, Past Due [Line Items]
Total loans and leases	0	0
Commercial and industrial | PPP loans | Total Past Due
Financing Receivable, Past Due [Line Items]
Total loans and leases	0	0
Commercial and industrial | PPP loans | Current Loans
Financing Receivable, Past Due [Line Items]
Total loans and leases	141,930	291,252
Commercial real estate
Financing Receivable, Past Due [Line Items]
Total loans and leases	2,616,019	2,569,192
Commercial real estate | 30-59 Days
Financing Receivable, Past Due [Line Items]
Total loans and leases	58	263
Commercial real estate | 60-89 Days
Financing Receivable, Past Due [Line Items]
Total loans and leases	0	0
Commercial real estate | 90 Days or More
Financing Receivable, Past Due [Line Items]
Total loans and leases	21,651	7,125
Commercial real estate | Total Past Due
Financing Receivable, Past Due [Line Items]
Total loans and leases	21,709	7,388
Commercial real estate | Current Loans
Financing Receivable, Past Due [Line Items]
Total loans and leases	2,594,310	2,561,804
Commercial real estate | Agriculture
Financing Receivable, Past Due [Line Items]
Total loans and leases	192,183	201,866
Total loans and leases, net of unearned income and deferred costs and fees	192,183	201,866
Commercial real estate | Agriculture | 30-59 Days
Financing Receivable, Past Due [Line Items]
Total loans and leases	58	263
Commercial real estate | Agriculture | 60-89 Days
Financing Receivable, Past Due [Line Items]
Total loans and leases	0	0
Commercial real estate | Agriculture | 90 Days or More
Financing Receivable, Past Due [Line Items]
Total loans and leases	0	0
Commercial real estate | Agriculture | Total Past Due
Financing Receivable, Past Due [Line Items]
Total loans and leases	58	263
Commercial real estate | Agriculture | Current Loans
Financing Receivable, Past Due [Line Items]
Total loans and leases	192,125	201,603
Commercial real estate | Commercial real estate other
Financing Receivable, Past Due [Line Items]
Total loans and leases	2,253,190	2,204,310
Total loans and leases, net of unearned income and deferred costs and fees	2,253,190	2,204,310
Commercial real estate | Commercial real estate other | 30-59 Days
Financing Receivable, Past Due [Line Items]
Total loans and leases	0	0
Commercial real estate | Commercial real estate other | 60-89 Days
Financing Receivable, Past Due [Line Items]
Total loans and leases	0	0
Commercial real estate | Commercial real estate other | 90 Days or More
Financing Receivable, Past Due [Line Items]
Total loans and leases	21,651	7,125
Commercial real estate | Commercial real estate other | Total Past Due
Financing Receivable, Past Due [Line Items]
Total loans and leases	21,651	7,125
Commercial real estate | Commercial real estate other | Current Loans
Financing Receivable, Past Due [Line Items]
Total loans and leases	2,231,539	2,197,185
Commercial real estate | Construction
Financing Receivable, Past Due [Line Items]
Total loans and leases	170,646	163,016
Total loans and leases, net of unearned income and deferred costs and fees	170,646	163,016
Commercial real estate | Construction | 30-59 Days
Financing Receivable, Past Due [Line Items]
Total loans and leases	0	0
Commercial real estate | Construction | 60-89 Days
Financing Receivable, Past Due [Line Items]
Total loans and leases	0	0
Commercial real estate | Construction | 90 Days or More
Financing Receivable, Past Due [Line Items]
Total loans and leases	0	0
Commercial real estate | Construction | Total Past Due
Financing Receivable, Past Due [Line Items]
Total loans and leases	0	0
Commercial real estate | Construction | Current Loans
Financing Receivable, Past Due [Line Items]
Total loans and leases	170,646	163,016
Residential real estate
Financing Receivable, Past Due [Line Items]
Total loans and leases	1,455,630	1,435,987
Residential real estate | 30-59 Days
Financing Receivable, Past Due [Line Items]
Total loans and leases	252	1,234
Residential real estate | 60-89 Days
Financing Receivable, Past Due [Line Items]
Total loans and leases	365	1,103
Residential real estate | 90 Days or More
Financing Receivable, Past Due [Line Items]
Total loans and leases	6,364	5,336
Residential real estate | Total Past Due
Financing Receivable, Past Due [Line Items]
Total loans and leases	6,981	7,673
Residential real estate | Current Loans
Financing Receivable, Past Due [Line Items]
Total loans and leases	1,448,649	1,428,314
Residential real estate | Home equity
Financing Receivable, Past Due [Line Items]
Total loans and leases	185,625	200,827
Total loans and leases, net of unearned income and deferred costs and fees	185,625	200,827
Residential real estate | Home equity | 30-59 Days
Financing Receivable, Past Due [Line Items]
Total loans and leases	159	713
Residential real estate | Home equity | 60-89 Days
Financing Receivable, Past Due [Line Items]
Total loans and leases	0	224
Residential real estate | Home equity | 90 Days or More
Financing Receivable, Past Due [Line Items]
Total loans and leases	1,039	1,126
Residential real estate | Home equity | Total Past Due
Financing Receivable, Past Due [Line Items]
Total loans and leases	1,198	2,063
Residential real estate | Home equity | Current Loans
Financing Receivable, Past Due [Line Items]
Total loans and leases	184,427	198,764
Residential real estate | Mortgages
Financing Receivable, Past Due [Line Items]
Total loans and leases	1,270,005	1,235,160
Total loans and leases, net of unearned income and deferred costs and fees	1,270,005	1,235,160
Residential real estate | Mortgages | 30-59 Days
Financing Receivable, Past Due [Line Items]
Total loans and leases	93	521
Residential real estate | Mortgages | 60-89 Days
Financing Receivable, Past Due [Line Items]
Total loans and leases	365	879
Residential real estate | Mortgages | 90 Days or More
Financing Receivable, Past Due [Line Items]
Total loans and leases	5,325	4,210
Residential real estate | Mortgages | Total Past Due
Financing Receivable, Past Due [Line Items]
Total loans and leases	5,783	5,610
Residential real estate | Mortgages | Current Loans
Financing Receivable, Past Due [Line Items]
Total loans and leases	1,264,222	1,229,550
Consumer and other
Financing Receivable, Past Due [Line Items]
Total loans and leases	72,289	69,800
Consumer and other | 30-59 Days
Financing Receivable, Past Due [Line Items]
Total loans and leases	173	290
Consumer and other | 60-89 Days
Financing Receivable, Past Due [Line Items]
Total loans and leases	96	53
Consumer and other | 90 Days or More
Financing Receivable, Past Due [Line Items]
Total loans and leases	265	323
Consumer and other | Total Past Due
Financing Receivable, Past Due [Line Items]
Total loans and leases	534	666
Consumer and other | Current Loans
Financing Receivable, Past Due [Line Items]
Total loans and leases	71,755	69,134
Consumer and other | Commercial real estate other
Financing Receivable, Past Due [Line Items]
Total loans and leases	66,694	61,399
Consumer and other | Commercial real estate other | 30-59 Days
Financing Receivable, Past Due [Line Items]
Total loans and leases	82	115
Consumer and other | Commercial real estate other | 60-89 Days
Financing Receivable, Past Due [Line Items]
Total loans and leases	19	18
Consumer and other | Commercial real estate other | 90 Days or More
Financing Receivable, Past Due [Line Items]
Total loans and leases	110	232
Consumer and other | Commercial real estate other | Total Past Due
Financing Receivable, Past Due [Line Items]
Total loans and leases	211	365
Consumer and other | Commercial real estate other | Current Loans
Financing Receivable, Past Due [Line Items]
Total loans and leases	66,483	61,034
Consumer and other | Indirect
Financing Receivable, Past Due [Line Items]
Total loans and leases	5,595	8,401
Total loans and leases, net of unearned income and deferred costs and fees	5,595	8,401
Consumer and other | Indirect | 30-59 Days
Financing Receivable, Past Due [Line Items]
Total loans and leases	91	175
Consumer and other | Indirect | 60-89 Days
Financing Receivable, Past Due [Line Items]
Total loans and leases	77	35
Consumer and other | Indirect | 90 Days or More
Financing Receivable, Past Due [Line Items]
Total loans and leases	155	91
Consumer and other | Indirect | Total Past Due
Financing Receivable, Past Due [Line Items]
Total loans and leases	323	301
Consumer and other | Indirect | Current Loans
Financing Receivable, Past Due [Line Items]
Total loans and leases	5,272	8,100
Leases
Financing Receivable, Past Due [Line Items]
Total loans and leases	14,337	14,203
Leases | 30-59 Days
Financing Receivable, Past Due [Line Items]
Total loans and leases	0	0
Leases | 60-89 Days
Financing Receivable, Past Due [Line Items]
Total loans and leases	0	0
Leases | 90 Days or More
Financing Receivable, Past Due [Line Items]
Total loans and leases	0	0
Leases | Total Past Due
Financing Receivable, Past Due [Line Items]
Total loans and leases	0	0
Leases | Current Loans
Financing Receivable, Past Due [Line Items]
Total loans and leases	$ 14,337	$ 14,203